 | | Journal (issue) |
| chromium-bearing mica (fuchsite); • in the ruby occurrence of Fiskenässet, Greenland, red corundum is found...rubybearing zoisite-amphibolite from Longido, Tanzania, pargasitic amphiboles are found in association...amphiboles were found in a corundum- and spinel-bearing marble from Pakistan (exact locality not given in the...assemblages were also mentioned later from the ruby marble deposit of Hunza, Pakistan (Okrusch et al, 1976)...in metamorphic marbles. The ruby-bearing marble occurrence of Stirigma, Greece, in which pargasite and |
 | | Book (edition) |
| dealing with mode of origin and localities of occurrence have been thoroughly revised. The genesis of...general description of the associa¬ tion and occurrence of the minerals which it contains is given. Statistics...general physical characters, together with their occurrence, associations, uses, etc., are included under...Arranged According to Elements .... 124 326 Occurrence and Association of Minerals Rocks and Rock-making...lines A-B and A-C, would be the more common in occurrence. Law of the Constancy of Interfacial Angles. |
 | | Journal (article/letter/editorial) |
| few metasomatic occurrences. All spinel occurs in marble and calc-silicate/silicate-rich metacarbonate rocks...diopside, humite, forsterite, scapolite, anorthite, graphite, and pyrrhotite. The spinel formed under peak...Keywords: gemstones, spinel, cobalt, Baffin Island, marble, calc-silicate rock. INTRODUCTION Interest in...a common constituent of marble and metasomatic rocks associated with marble, but it is seldom of gem... is mined at several localities worldwide: (1) marble-hosted and eluvial § deposits in karsts at Mogok |
 | | Journal (article/letter/editorial) |
| metamorphic diamond from the Kokchetav UHP dolomite marble, northern Kazakhstan a a b Kyoko Imamura , Yoshihide...metamorphic diamond from the Kokchetav UHP dolomite marble, northern Kazakhstan, International Geology Review...metamorphic diamond from the Kokchetav UHP dolomite marble, northern Kazakhstan Kyoko Imamuraa , Yoshihide...spectrometry. Typical microdiamonds in this dolomite marble show star-shaped morphologies (S-type) consisting...dolomite marble. Keywords: microdiamond; UHP metamorphism; carbon isotopes; SIMS; dolomite marble Introduction |
 | | Report (issue) |
| barite occurrence Pakenham quarry Cedar Hill soapstone occurrence Galetta celestine occurrence Kingdon...Kingdon (Fitzroy, Galetta) mine Stanton lead occurrence Bell’s mine Calabogie area Bluff Point mine Calabogie...Renfrew–McArthurs Mills area Hunt mine Dacre iron occurrence Keyfortmore mine Radnor mine Sunset mine Spain...molybdenite mine Easton Minerals quarry Two Island marble quarry Ruby mine McCoy mine v 41 42 44 44 45...79 80 81 82 82 83 85 86 86 87 89 89 90 vi Mayo marble quarry Renfrew–Madawaska area Renfrew County Road |
 | | Book |
| in thin section 27 Hematite Pyrite Pyrrhotite Graphite Carbonaceous substances 31 32 33 33 34 17 18...minerals are predominantly comprised of ore minerals, graphite and carbonaceous substances. Some minerals in...used for identification. Distinguishing features: graphite has less defined, smeared grain boundaries and...skeletal forms and/or is altered to leucoxene. Occurrence: accessory mineral in most igneous rocks. It...clearly seen in altered than in fresh grains. Occurrence: it occurs together with magnetite as an accessory |
 | | Report (volume) |
| biological and physical sciences of the Pacific region. University of Hawaii Press. Honolulu, Hawaii....of the marine NGegene formations of the Coalinga region, California: California Univ. Pubs. Geol. Sci....tables, 1969. 05262 Ahmad, N.; Jones, Robert L. Occurrence of aluminous lateritic soils (bauxites) in the...abs.], in A symposium on processes in the focal region-Internat. Union Geodesy and Geophysics, 14th Gen...Lands). Guidebook of northern Mexico, Sonoran Desert region - Internat. Conf. Arid Lands in Changing World |
 | | Report (issue) |
| the name of the mine, deposit, field, area, or occurrence being described. Synonyms and Other Names or...might also 5 include any specific mine or occurrence names that are known, i.e. "includes Northern...site has produced and when or if it is a mineral occurrence or showing. Host Rock Age and Host Rock contain...Asb asbestos Lst limestone Ba barite Mbl marble Bri brine Mg magnesium, magnesite Ca calcite...sand and gravel GEM gemstones Shl shale GRF graphite Tlc talc Gyp gypsum REFERENCES Abdullah, |
 | | Journal (article/letter/editorial) |
| composition, dominated by amphibole-bearing dolomitic marble and albite-rich quartzo-feldspathic rocks (QFR)...scapolite-bearing assemblages in dolomite marble, occurrence of tourmaline-rich mineralized rocks and...has been confirmed by subsequent studies in the region to the east and southeast of Udaipur (Roy and Paliwal...assemblage (the latter being represented by dolomitic marble and crystalline limestone) and a dominant mica...(post-Aravalli) thermal perturbations. The older, dolomitic marble unit occurring at Jhamarkotra (20 km SE of Udaipur) |
 | | Journal (issue) |
| 142 Well-Formed Tsavorite Gem Crystals from Tanzania Robert E. Kane, A n t h o n y R. I...nickel (depending on the color desired) into a region that extends just below the surface of the otherwise...permitted microprobe analysis of both the near-surface region affected by the diffusion treatment process, as...colorless part (spectrum a), and i n the outer blue region (spectrum b), of a diffusion-treated blue sapphire...LOCATION, AND ACCESS When the Spaniards arrived in the region that is now Guatemala (about 1519), Mayan chiefs |
 | | Report (issue) |
| cassiterite. from placer operations in the York region since 1902. In 1911 a dredge was installed on Buck...tin has also been recovered in the Yukon-Tanana region in the Hot Springs district, and a small production...Investigations of the tin deposits of the York region have been made by a number of Geological Survey...mining developments to detailed studies of the one occurrence. The most complete of these studies were made...the essential features covering the geologic occurrence of the Cassiterite. The following publications |
 | | Report (volume) |
| geologists............................................. Marble in general............................................................. Limestone and marble................................................. Page. 9...9 10 11 11 Definitions of marble.................................................. Chemical composition...Origin of limestone and marble.......................................... Calcite marble......................Dolomite marble....................................................... Relation of calcite marble to dolomite |
 | | Book (edition) |
| dipyramid hexagonal dipyramid (first MINERALS graphite covellite and second order) molybdenite dihexagonal...different physical properties (e.g., diamond and graphite). Van der Waals bonds are never the only type...very soft and excellent electrical conductors (graphite). Isomorphism Just as several different crystalline...(sulfur, left pyrrhotite) and the native element graphite. 59 COLLECTIONS It is not enough to know in...objects or replacing fibers of wooden supports. Occurrence up to 3 cm (1 .1 The 8 finest crystals of |
 | | Report (issue) |
| Florida. _______________________________ Caribbean region ___ _--_---____-_._____ Midcontinent area____ ________...Connecticut._______________________________ Appalachian region.____________________________ Pennsylvania and New...Idaho -------------------------------Pacific coast region.-_--______--_-____._--___ Washington. _______....------------------------Cenozoic of the Pacific coast region. ___________ Other paleontological studies _________________...Washington and California and for the Appalachian region have been completed or are Hearing completion. |
 | | Report (issue) |
| The brief notes on the general geology of the region and on the mica deposits are largely taken from...from an earlier paper,0 in which the occurrence of mica-bearing pegmatites and their origin were treated...from 800 to 1,500 feet above the sea in the mica region and is more .or less dissected by river and creek...Piedmont belt is often difficult on account of their occurrence in hills with but slight elevation and gentle...gneisses and schists. Other rocks occurring in the region, also of Archean age, are granites, diorites, and |
 | | Report (issue) |
| THE OCCURRENCE OF METALLIFEROUS DEPOSITS IN THE YUKON AND KUSKOKWIM REGIONS. By J. B. MERTIE, Jr. INTRODUCTION...and deductions regarding the distribution and occurrence of mineral deposits in interior Alaska. The paper...the Kuskokwim. Relatively little is known of the region north of Yukon River, but so far as known the geologic...Prindle, 1913. Bulletin 532. The Koyukuk-Chandalar region, Alaska, by A. G. Maddren, 1913. Bulletin 535....R. Capps, 1915. Bulletin 631. The Yukon-Koyukuk region, Alaska, by H. M. Eakin, 1916. Bulletin 649. Antimony |
 | | Report (volume) |
| production Summary for Chromite, Coal, diamonds. Gold, Graphite, Iron, Jadeite, I.«ead and Silver, Magnesite,...Provinces Alluvial gold : : : ; Graphite Iron. . — Mode of occurrence. — Production. Production ....industry : in Garhwal. Imports Jadeite. Ill occurrence. Leadf Silver .... : Value of jade. History...consumption. Distribution of mica exjiorted. Occurrence. Vses of mica. Mining B. Kodiirile methods...251 oil-j>roduc- Value of imports. Exports. Occurrence of Indian jHdroleum. Punjab and Baluchistan. |
 | | Book (edition) |
| a general description of the association and occurrence of the minerals which etc., it contains is...general physical characters, together with their occurrence, associations, uses, etc., are included under...115 MINERALS ARRANGED ACCORDING TO ELEMENTS. OCCURRENCE AND ASSOCIATION OF MINERALS LISTS OF . Rocks...lines A-B and A-C, would be the more common in occurrence. include a greater or less MANUAL OF MINERALOGY...of their faces. Perhaps the one most common in occurrence has the parameter relations la, 2b, c, the |
 | | Journal (article/letter/editorial) |
| hand, it can be readily argued that the mode of occurrence, petrography and geochemistry of the Eppawala...tremolite and secondary carbonates is very common. A marble band lacking economic phosphate mineralisation...we shall refer to this marble occurrence as the Senapura marble. This marble band varies in thickness...intercalated in the dominant marble lithology. Although the Senapura marble does not differ significantly...components are distinctly different. In the Senapura marble, calcite and dolomite are the dominant minerals |
 | | Report (issue) |
| . . . . . . . . . . . Cap aux Meules gypsum occurrence . . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . Baie du Sud occurrence . . . . . . . . . . . . . . . . . . . . . . ................................... Butte Ronde occurrence . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . Ile Boudreau occurrence . . .. .. . .. ... . . . . .. . .. . .. . .....34 34 Contents (cont. ) Page Demoiselle Hill occurrence . . . . . . . . . . . . . . . . . . . . . . |
 | | Report (issue) |
| Meules Cap aux Meules calcite occurrence Cap aux Meules gypsum occurrence Cap au Taureau occurrences Fatima...Baie du Sud occurrence Île du Havre aux Maisons Anse à Damase occurrence Butte Ronde occurrence Chemin des...Head Île de la Grande Entrée Boudreau Island occurrence 26 26 27 27 27 28 30 30 Cap-aux-Meules to Havre-Aubert...Collines de la Demoiselle Collines de la Demoiselle occurrence 31 31 33 33 33 34 Sandy Hook Dune Île du Havre...amethyst occurrence Middle Cove, Outer Cove occurrences Torbay quarry Bauline Road occurrence Quidi Vidi |
 | | Report (volume) |
| _...-................................ Mineral occurrence................................................opportunities for accurate surveys, but as the region -had fortunately been surveyed by the International...description of the geology and mineral resources of the region has not been attempted in this report. Nevertheless...to him by the many prospectors and miners of the region. Though it would be impossible to give the names...of the Porcupine and its tributaries, McKinley, Marble, and Grizzly creeks, and a number of bench claims |
 | | Book (edition) |
| and general physical characters, together with occurrence, associations, and uses, are included in this...oneee we eer 131 243 254 266 A care 270 OccURRENCE AND ASSOCIATION OF MINERALS..............-eececeee0--...or the indices of a face of a trapezohedron. Occurrence of Isometric Forms of the HexocThe cube, octahedron...may be developed in regard to metallic minerals. Graphite (G. 2.1) seems light, while silver (G. 10.5) seems...and nomenclature. Up to the present time the occurrence of ninety-two different elements has been established |
 | | Book |
| Canyon, Arizona : Important deposits of mica, graphite, talc and serpentine . Segregation and deep-seated...chipped stone weapons in southern Moravia. This is a region where tribes that lived in skin tents hunted mammoths...show that smelting was carried on. Mines in this region continued to be a source of copper until the time...and industrial purposes. We still quarry granite, marble and limestone for building, but much greater amounts...elements exist alone, forming such minerals as graphite, diamond and copper. The great bulk of minerals |
 | | Book (edition) |
| Molyhdates 385 Silicates 389 371 6 . . . . OCCURRENCE AND ASSOCIATION OF MINERALS Rocks and Rock-Forming...in a garden has seen minerals in their natural occurrence. The rocks of the mountain, the sand on the beach...mineralogy are limited to materials of natural occurrence. Thus, steel, cement, plaster, and glass are...growt h if such irregularities are of common occurrence. Galena , for example, has a cubic habit , magnetite...or the indices of a face of a trapezohedron. Occurrence of isometric forms of the hexoctahedral class |
